从开启只读,一般用户无法写入:
[root@slave ~]# mysql -uzjzc_app -p1234567
Database changed
mysql> create table test(id int);
Query OK, 0 rows affected (0.01 sec)
mysql> insert into test values(1);
开启只读,添加read-only
[root@slave ~]# mysql -uzjzc_app -p1234567
Database changed
mysql> select * from test;
+------+
| id |
+------+
| 1 |
| 2 |
+------+
2 rows in set (0.00 sec)
mysql> insert into test values(3);
ERROR 1290 (HY000): The MySQL server is running with the --read-only option so it cannot execute this statement